2018/12/12 by Jun-Jie Zhang, Yang Zhang, Shuai Dong · 15 citations
Materials Science · Physics and Astronomy · #2D Materials and Applications #Anisotropy #Bilayer #Graphene research and applications #Layer (electronics) #Nanoscopic scale #Stability (learning theory) #Superconductivity #Topological Materials and Phenomena #Work (physics) #cond-mat.mes-hall #cond-mat.mtrl-sci #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevmaterials.2.126004
published in Physical Review Materials 2(12) (American Physical Society) · 7 pages, 11 figures
arxiv created 2018/12/12 · openalex created_date 2018/12/22 · openalex publication_date 2018/12/27 · arxiv updated 2018/12/31 · openalex updated_date 2026/08/05
For two-dimensional superconductors, the high stability in ambient conditions is critical for experiments and applications. Few-layer antimonene can be nondegradative over a couple of months, which is superior to the akin black phosphorus. Based on the anisotropic Migdal-Eliashberg theory and maximally-localized Wannier functions, this work predicts that electron-doping and Ca-intercalation can transform \ensuremathβ-Sb bilayer from a semimetal to a superconductor. However, the stability of antimonene bilayer in air trends to be decreased due to the electron doping. To overcome this drawback, two kinds of protective layers (graphene and h-BN) are proposed to enhance the stability. Interestingly, the superconducting transition temperature will also be enhanced to 9.6\phantom\rule0.28em0exK, making it a promising candidate as nanoscale superconductor.